package com.situ.mall.interceptor;

import com.situ.mall.pojo.Admin;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import org.springframework.web.servlet.HandlerInterceptor;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1.判断用户有没有登录
        //2.如果登录了，就放行，可以访问后台的资源
        //3.如果没有登录，跳转到登录界面
        HttpSession session = request.getSession();
        Admin admin = (Admin) session.getAttribute("admin");
        if (admin == null) {
            //没有登录，跳转到登录界面
            response.sendRedirect("/page/login");
            return false;
        }

        return true;
    }
}